exoclock

HD189733b (LOW)

Discovered by: Bouchy et al. 2005

The Star
Simbad
GAIA
2MASS
HD 189733
DR2 1827242816201846144
J20004370+2242391
RA 20:00:43.7130 DEC +22:42:39.071
Parallax
50.568 mas
P.M. RA
-3.294 mas/y
P.M. DEC
-250.225 mas/y
MagV
7.648
MagR
7.126
MagI
6.68
MagJ
6.073
MagH
5.587
MagK
5.541
MagG
7.414
MagGBP
7.913
MagGRP
6.808
*Calculated from GAIA magnitudes.

Ephemeris - Verified True
Kokori et al. 2022
Mid-time
2456194.067619 ± 3.4e-05 BJDTDB
Period
2.218574944 ± 3e-08 days

Transit Parameters
Morello et al. 2014
Rp/Rs
0.15534 ± 0.00011
a/Rs
8.92 +0.03 -0.03
i
85.78 +0.03 -0.03 deg
e
-
ω
- deg
DepthR*
28.36 mmag
Duration*
1.81 hours
*Calculated from the other parameters, using PyLightcurve.
**Adjusted based on the space observations.

Limb Darkening Parameters
Torres et al. 2008
Teff
5040.0 +50.0 -50.0 K
Log(g)
4.59 +0.01 -0.01 cm/s2
Fe/H
-0.03 +0.08 -0.08 dex
ExoClock Status
Observing Priority LOW
Minimum aperture 5.0"
Total Observations (Recent) 76 (13)
O-C 0.63 ± 0.1 minutes
ExoClock Observations (Recent) 49 (13)
Space Observations (Recent) 7 (0)
ETD Observations (Recent) 0 (0)
Literature Mid-times (Recent) 20 (0)
Kepler Rp/Rs -
TESS Rp/Rs 0.156218 ± 9e-05

HD189733b


ExoClock Observations

Planet
Observation Date
Observer
Observatory
Telescope
Camera / Filter / Exp [s]
O-C
minutes
HD189733b (LOW)
2023-11-07
Javier Alonso Santiago
INAF-OACT
Cassegrain 91cm
Moravian C4-1600EC / B / 3.9
-0.88 ± 0.52
HD189733b (LOW)
2023-09-28
Paolo Arcangelo Matassa
P:M.P.H.R. Deep Sky (K81)
Ritchey Chretien 40cm-F5.3
CCD ICX453AQ / R / 15.0
0.98 ± 0.6
HD189733b (LOW)
2023-09-28
Stefano Lora
MarSEC
Ritchey Chrétien
Moravian G2 Mark II / R / 60.0
-0.38 ± 0.65
HD189733b (LOW)
2023-09-08
Miguel Ángel Álava Amat
Sarriguren
Meade SC 8"
Asi 1600 MM / rpr / 120.0
-0.52 ± 0.35
HD189733b (LOW)
2023-08-04
Bryan Martin
Tiger Butte Observatory Remote
AG Optical IDK
ZWO ASI 294 / I / 5.0
-0.29 ± 0.95
HD189733b (LOW)
2023-07-10
Manfred Raetz
privat observatory Herges-Hallenberg
SCT 280/1850 (C11 with Starizona reducer)
Moravian Instruments G2-1600 / I / 30.0
5.85 ± 0.26
HD189733b (LOW)
2023-07-10
Miguel Ángel Álava Amat
Sarriguren
Meade SC 8"
Asi 1600 MM / rpr / 120.0
-0.29 ± 0.39
HD189733b (LOW)
2023-07-10
Leon Bewersdorff
Observatory Kipshoven (BLEW)
GSO Ritchey-Chrétien
QHY268M-PH / AstrodonExoPlanet-BB / 5.0
-1.53 ± 0.89
HD189733b (LOW)
2023-07-04
Bryan Martin
Tiger Butte Observatory Remote
AG Optical IDK
ZWO ASI 294 / I / 10.0
2.95 ± 1.01
HD189733b (LOW)
2023-06-21
Simon Dawes
William James II
Celestron Edge11 HD
Risingcam Monochrome SONY imx571 / R / 300.0
2.09 ± 0.32
HD189733b (LOW)
2023-06-21
Balazs Benei
BeneiObs300
Tair 300mm f/4.5
ZWO ASI 178 MC / Clear / 10.0
1.56 ± 1.73
HD189733b (LOW)
2023-05-25
Bryan Martin
Tiger Butte Observatory Remote
AG Optical IDK
ZWO ASI 294 / I / 5.0
1.53 ± 1.37
HD189733b (LOW)
2023-04-15
Bryan Martin
Tiger Butte Observatory Remote
AG Optical IDK
ZWO ASI 294 / I / 5.0
0.7 ± 1.2
HD189733b (LOW)
2022-10-08
Patrick Wagner
Balcony
Skywatcher Evoguide 50 ED
ZWO ASI 178MC / Clear / 10.0
-0.06 ± 1.22
HD189733b (LOW)
2022-09-18
Davide Pica
Private Observatory
Celestron C9.25
ASI 533 MC Pro / R / 3.75
-2.41 ± 0.68
HD189733b (LOW)
2022-08-29
Lorenzo Betti
Osservatorio Polifunzionale del Chianti
RC-80cm
Moravian G4 - KAF 09000 / R / 20.0
-1.83 ± 0.26
HD189733b (LOW)
2022-07-29
Georgios Lekkas
Specca Observatory
Newtonian Reflector 254/1200 mm
Atik 320E / I / 15.0
1.72 ± 1.01
HD189733b (LOW)
2022-07-14
Josh Jones
ASG Observatory
Rowe-Ackermann Schmidt Astrograph
ASI 1600mm / Lum / 29.0
0.61 ± 0.86
HD189733b (LOW)
2022-07-09
Nataliia Maslennikova
Caucasus Mountain Observatory SAI MSU
RC-600 ASA
Andor iKon-L / gpr / 5.0
-0.36 ± 0.23
HD189733b (LOW)
2022-07-01
Miguel Ángel Álava Amat
Sarriguren
Meade SC 8"
Asi 1600 MM / Clear / 120.0
-1.02 ± 0.58
HD189733b (LOW)
2022-06-19
Claudio Lopresti
Claudio Lopresti
Mak-Newton
CCD Sbig ST10xme / Clear / 60.0
-1.23 ± 1.01
HD189733b (LOW)
2022-06-11
Eric Miny
BLOIS SOLOGNE ASTRONOMIE OBSERVATORY
Newton T305
QSI 683WS / R / 20.0
0.43 ± 0.58
HD189733b (LOW)
2021-08-28
Yves Jongen
Rasteau Observatory
Plane Wave CDK 17"
SBIG STXL 11002 / V / 60.0
-0.12 ± 0.58
HD189733b (LOW)
2021-07-22
Yves Jongen
Deep Sky Chile
Plane Wave CDK 17"
Moravian 4G / V / 120.0
1.71 ± 0.72
HD189733b (LOW)
2021-07-19
Claudio Lopresti
Claudio Lopresti
Mak-Newton
CCD Sbig ST10xme / I / 80.0
1.24 ± 0.58
HD189733b (LOW)
2021-04-11
Carmelo Falco
GALHassin Robotic Telescope 2 (GRT2)
Giacometti-Fogale RC16
Andor Apogee Aspen CG16M / zpr / 25.0
0.91 ± 0.58
HD189733b (LOW)
2020-07-29
Didier Laloum
Observatoire Privé du Mont (OPM)
RC 8 GSO
Atik 383L+ / I / 15.0
1.23 ± 0.58
HD189733b (LOW)
2020-07-29
Patrick Brandebourg
Patrick Brandebourg (Observatoire du Guernet)
RC 250
Sbig ST8300M / R / 1.5
-1.36 ± 1.44
HD189733b (LOW)
2020-07-09
Mauro Caló
Cavallino
RC
SBIG ST10 / H / 60.0
-0.39 ± 0.86
HD189733b (LOW)
2020-06-28
Constantinos Aggelis
AGGELIS CONSTANTINOS
GSO RC8
ZWO ASI183MM-PRO / R / 20.0
-1.0 ± 2.16
HD189733b (LOW)
2019-08-29
Alberto Tomatis
Alto-Observatory
RC
STL 6303 / I / 30.0
4.28 ± 1.87
HD189733b (LOW)
2019-07-21
Ramon Naves
Montcabrer
Meade LX200 12" ACF
Moravian G4-9000 / ipr / 120.0
1.45 ± 0.6
HD189733b (LOW)
2019-07-09
Yves Jongen
Rasteau Observatory
Plane Wave CDK 17"
SBIG STXL 11002 / V / 120.0
0.71 ± 0.58
HD189733b (LOW)
2018-10-27
Lionel Rousselot
Private observatory Vierzon
Newton
ZWO 1600 monochrome / Clear / 120.0
2.47 ± 0.58
HD189733b (LOW)
2018-08-20
Yves Jongen
Rasteau Observatory
Plane Wave CDK 17"
SBIG STXL 11002 / V / 120.0
2.36 ± 1.15
HD189733b (LOW)
2018-07-19
Yves Jongen
Rasteau Observatory
Plane Wave CDK 17"
SBIG STXL 11002 / V / 120.0
1.42 ± 1.01
HD189733b (LOW)
2018-06-29
Yves Jongen
Rasteau Observatory
Plane Wave CDK 17"
SBIG STXL 11002 / V / 120.0
-0.63 ± 1.01
HD189733b (LOW)
2017-08-18
Alessandro Marchini
Astronomical Observatory University of Siena
Mak-Cas 0.3m f/5.6
Sbig STL-6303 / I / 90.0
0.0 ± 0.43
HD189733b (LOW)
2017-07-18
Alessandro Marchini
Astronomical Observatory University of Siena
Mak-Cas 0.3m f/5.6
Sbig STL-6303 / I / 90.0
-0.07 ± 0.3
HD189733b (LOW)
2015-07-19
Marc Deldem
Les Barres Observatory
Celestron C8
SBIG ST8-XME / Clear / 60.0
-0.85 ± 0.58
HD189733b (LOW)
2014-08-07
Claudio Lopresti
Claudio Lopresti
Mak-Newton
CCD Sbig ST10xme / R / 90.0
0.14 ± 0.58
HD189733b (LOW)
2012-08-07
Ramon Naves
Montcabrer
Meade LX200 12" ACF
Sbig ST8xme / V / 120.0
2.6 ± 0.33
HD189733b (LOW)
2010-08-17
Ramon Naves
Montcabrer
Meade LX200 12" ACF
Sbig ST8xme / R / 120.0
1.63 ± 0.42
HD189733b (LOW)
2009-10-06
Alessandro Marchini
Astronomical Observatory University of Siena
Mak-Cas 0.3m f/5.6
Sbig STL-6303 / R / 60.0
0.08 ± 0.86
HD189733b (LOW)
2009-07-07
Alessandro Marchini
Astronomical Observatory University of Siena
Mak-Cas 0.3m f/5.6
Sbig STL-6303 / R / 60.0
1.48 ± 0.86
HD189733b (LOW)
2008-08-26
Filip Walter
Stefanik Observatory
Meade SCT
SBIG ST-10XME / R / 25.0
-0.77 ± 0.58
HD189733b (LOW)
2008-08-18
Ramon Naves
Montcabrer
Meade LX200 12" ACF
Sbig ST8xme / R / 120.0
-2.95 ± 0.59
HD189733b (LOW)
2008-06-27
Filip Walter
Stefanik Observatory
Meade SCT
SBIG ST-10XME / B / 70.0
3.01 ± 0.43
HD189733b (LOW)
2007-07-28
Alessandro Marchini
Astronomical Observatory University of Siena
Mak-Cas 0.3m f/5.6
Sbig STL-6303 / V / 60.0
1.02 ± 0.72

Space Observations

Planet
Observation Date
Mission O-C
minutes
HD189733b (LOW)
2021-08-13
TESS0.22 ± 0.08
HD189733b (LOW)
2021-08-11
TESS-0.01 ± 0.06
HD189733b (LOW)
2021-08-08
TESS-0.12 ± 0.05
HD189733b (LOW)
2021-08-04
TESS0.16 ± 0.06
HD189733b (LOW)
2021-08-02
TESS0.07 ± 0.07
HD189733b (LOW)
2021-07-31
TESS0.04 ± 0.06
HD189733b (LOW)
2021-07-26
TESS-0.04 ± 0.07

Literature Mid-times

Planet
Observation Date
Reference O-C
minutes
2010-12-29 Knutson et al. 2012 -0.91 ± 0.05
2008-09-15 Hrudková et al. 2010 0.55 ± 0.76
2008-08-26 Hrudková et al. 2010 0.34 ± 0.27
2008-07-29 Hrudková et al. 2010 0.39 ± 0.27
2008-07-17 Hrudková et al. 2010 1.12 ± 0.42
2008-07-09 Hrudková et al. 2010 0.11 ± 0.17
2008-06-19 Hrudková et al. 2010 0.61 ± 0.26
2008-06-14 Agol et al. 2010 0.03 ± 0.06
2008-06-12 Agol et al. 2010 0.24 ± 0.05
2008-06-08 Hrudková et al. 2010 -0.49 ± 0.55
2007-11-14 Agol et al. 2010 0.13 ± 0.05
2007-10-21 Agol et al. 2010 0.18 ± 0.04
2007-09-18 Hrudková et al. 2010 -0.64 ± 0.63
2007-08-17 Hrudková et al. 2010 -1.25 ± 0.6
2007-07-02 Agol et al. 2010 0.07 ± 0.06
2007-06-30 Agol et al. 2010 0.04 ± 0.05
2006-10-29 Agol et al. 2010 -0.14 ± 0.05
2006-08-27 Hrudková et al. 2010 0.02 ± 0.3
2006-08-08 Hrudková et al. 2010 0.49 ± 0.2
2006-07-19 Hrudková et al. 2010 0.68 ± 0.4
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